Then, as told, the odx contains flash data in encrypted/compressed form.I dont' know for ECUs, you need to RE bootarea to know the decryption/decompression algo and i did only for dq200 0CW, and yes they are simple once ported to C code, but takes some days to RE them, so i'm not surprised if they don't go opensource quickly.Flashdata first need to be descrambled and, at least for dsg, it's the same scrambling algo found in previous sgo files, just the byte subst table is per ecu type.About compression algo, don't know, probably dsg uses diff algo than bosch, anyway comparing compressed and uncompressed data makes the task very easy.